QuasarRAT Removal Guide

When the silent QuasarRAT slithers into your Windows operating system, it can permit malicious parties to do all kinds of things on your PC remotely. This threat is classified as a RAT, or Remote Access Trojan, and since its source code is available online, anyone can use it. Due to this, there are many variants of the original program, Quasar, that was released by MaxXor in 2014. Unfortunately, security tools might have a hard time catching and removing all versions of this malicious threat, but if the anti-malware program is up-to-date, it should be capable of detecting and eliminating this infection before it does anything bad. If security tools are not installed to warn you about the remote access Trojan, you might not realize that you have to delete QuasarRAT soon enough. Hopefully, you still have time to reverse the damage and avoid all security-related risks. Even if your operating system has been taken over by cyber criminals and the malicious threats controlled by them, you still need to get rid of the RAT.

It is hard to say what were the intentions of the company creating Quasar, but it is unlikely that anyone using this program can be trusted. After all, it is a known fact that the tool is exploited by cyber criminals, and if the creator of the original program wanted to prevent that from happening, they could have solved the issue by now. Instead of doing that, they continue to permit unknown parties to utilize QuasarRAT. This is an umbrella name for all the different versions of the original program. Unfortunately, cyber criminals can do a lot of damage using this RAT. For one, they can manipulate your operating system without you even knowing it. This allows them to download and run any file, kill already existing processes – which might be used to stop security software – as well as add, modify, or remove entries in the Windows Registry. On top of that, QuasarRAT has the capabilities of a keylogger, and it can record your keystrokes and mouse clicks. In fact, malicious parties can silently open websites and click them using the malicious Trojan. It can also monitor all activity on your Desktop. Ultimately, this threat can be used to download malware, spread infections to other systems, and steal login information and personal details.

The malicious parties standing behind different versions of QuasarRAT operate in different manners. This is why the location and the name of the silent launcher are unique in every case. Here is a list of the files and their locations that have been linked to different versions of the RAT.

%APPDATA%\Microsoft\MicrosoftUP.exe

%APPDATA%\system\core.exe

%PROGRAMFILES(x86)%\[unique characters]\servce.exe

%WINDIR%\SysWOW64\SubDir\Client.exe

Remember that there could be countless of other variants of QuasarRAT. So, how are these files dropped onto your computer? That is very hard to say, but it is most likely that they are installed along with other threats or by malware that already runs on your PC without your permission. Unsecure RDP connections, malicious software bundles, and camouflaged installers could all be used for the distribution of the threat. Ultimately, it all depends on the distributor. Once the file is installed, a point of execution should be created in the RUN directory to ensure that the threat starts running silently every time you start your computer. Once it is executed, the malicious program can do a lot of bad things that we have already discussed. If you want to discuss this further with us, post a comment below.

Have you encounter suspicious activity, found unfamiliar files, or ran a full system scan? That is how users are likely to discover QuasarRAT. Unfortunately, it is impossible to say what kind of damage this threat might have caused already, which is why the only thing you can do is ensure that all security measures are taken. First and foremost, you need to remove QuasarRAT. The instructions below can help you erase it manually, but we advise installing anti-malware software because other threats are likely to exist, and you want to have them deleted at once. Next, quickly change the login passwords to your sensitive accounts to protect them against hacking in the future. Next, employ trustworthy security software. If you utilize anti-malware software, you will not need to worry about this separately.

How to delete QuasarRAT

Simultaneously tap Ctrl+Shift+Esc to launch Task Manager and then click the Processes tab.

Right-click the malicious process and select Open File Location.

Click the process and select End process, then Delete the malicious file in the opened folder.

Simultaneously tap Win+R to launch RUN and then enter regedit.exe into the dialog box.

In the Registry Editor move to HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\RUN.

Identify the malicious value associated with the threat, right-click it, and select Delete.

Empty Recycle Bin to completely get rid of this remote access Trojan.

Install and run a legitimate malware scanner to check if you need to delete any other threats.